1.21 Support!

• Updated the pack to support and is now optimized for 1.21, including changes to support the new menu music.
• Added not 1, not 2, but 6 TRACKS! All of these were handcrafted by me during the past two months! They are called "Exposure", "Fluidity", "Deluge", "The Adventure of Retribution", "I am a maniac", and "Glacial Breeze."
• This update includes some copyright info, so be sure to check that out.

Again note that this pack replaces about 70-80% of in-game music, but not all. Don't forget to make sure your music sound slider is on when you apply the pack. It may take a restart of the game to hear the music. Happy listening! :)